How to Safely Undervolt Your GPU for Cooler Temps (UK Guide)

Introduction: Why UK Gamers Are Undervolting More in 2026

Across the UK, GPU undervolting has quietly shifted from a niche enthusiast trick to a mainstream optimisation method adopted by gamers, creators, and everyday PC users. In 2026, the landscape of PC hardware has evolved rapidly: GPUs are more powerful, power consumption has risen sharply, and UK energy prices remain noticeably higher than most European regions. As a result, many British PC owners are turning to undervolting as a safe, free, and reversible way to manage heat, reduce noise, and save on long-term running costs.

One of the biggest drivers for this trend is the new generation of power-intensive graphics cards like the RTX 5080, RTX 5090, and AMD RX 9070 XT, which deliver incredible performance but often operate near their thermal and power limits straight out of the box. UK users gaming in typical small bedrooms, semi-detached houses, or office setups with limited ventilation notice heat build-up more quickly. Unlike countries with larger homes or central AC, British gamers often rely on natural airflow or room fans, making cooler system operation genuinely important.

This is where undervolting steps in. By reducing the voltage a GPU uses while maintaining nearly identical clock speeds, users can cut temperatures by 5–15°C, reduce fan noise, and stabilise frame pacing—especially in heavily fluctuating titles like Warzone, Fortnite DX12, and Baldur’s Gate 3. Even beginners are drawn to undervolting because modern GPU tuning tools make it completely safe. Manufacturers like AMD, NVIDIA, and Intel have publicly supported undervolting for years, and UK consumer protection (CRA 2015) ensures performance adjustments do not void warranties unless physical damage occurs.

Another reason undervolting has exploded in popularity is the rising influence of online PC-building communities. Platforms like PC Part Picker UK have made it easy for users to compare GPUs, track thermals, and evaluate real-world power draw while browsing components. The UK community frequently shares undervolt profiles in build guides, encouraging new builders to view undervolting as part of a standard optimisation workflow, not an advanced modding technique.

Additionally, 2026’s focus on sustainable computing has encouraged UK consumers to reduce electricity usage wherever possible. While a GPU undervolt won’t slash an energy bill in half, it can meaningfully reduce long gaming-session consumption especially with high-end cards drawing 350–450 watts at stock voltage.

Overall, undervolting has become the perfect three-way benefit for UK consumers:
lower temps, lower noise, and lower energy use, all with zero performance loss and no added cost. It’s an accessible optimisation strategy for any PC gamer, whether building through PC Part Picker UK or tuning an existing setup.

What Is GPU Undervolting? A Beginner-Friendly UK Guide

GPU undervolting has become an essential optimisation technique for UK PC gamers, content creators, and enthusiasts. At its core, undervolting means reducing the voltage supplied to your GPU while maintaining its normal operating frequency. This results in lower temperatures, quieter operation, and potentially longer GPU lifespan, without sacrificing gaming performance.

Unlike underclocking, which lowers the GPU’s clock speed and reduces performance, undervolting maintains the GPU’s peak clock while decreasing power consumption. For example, high-end cards like the Palit GeForce RTX 5070 Infinity 3 12GB or the XFX Radeon RX 9060 XT SWIFT 8GB OC can achieve cooler temperatures and quieter operation in typical UK gaming setups, whether you’re playing Call of Duty Warzone, Forza Horizon 5, or Baldur’s Gate 3.

Modern GPUs are designed with voltage-frequency curves, which define how much voltage is applied at each clock speed. Out-of-the-box, manufacturers like NVIDIA, AMD, and Intel set conservative voltages to ensure stability across all chips. This leaves extra headroom for undervolting. UK gamers can safely adjust these settings using software such as:

• MSI Afterburner (for NVIDIA GPUs like the RTX 5060 Dual 8GB OC)
• AMD Adrenalin + Radeon Curve Optimiser (for AMD GPUs like the XFX Quicksilver RX 9070XT 16GB)
• Intel Arc Control (for Intel Arc GPUs like the Gigabyte RTX 5060 Low Profile OC 8GB)

An often-overlooked factor in undervolting is thermal interface quality. Applying a premium thermal paste improves heat transfer from the GPU die to the heatsink. Recommended products for UK builders include:

• Arctic MX-4 20g Premium Thermal Paste – ideal for high-end cards like the RTX 5090 or RX 9070 series.
• Gamdias Xc7 Extreme Thermal Paste 4g – great for mainstream undervolting and mid-range builds.
• Gamdias Xc3 Performance Thermal Compound 2g – cost-effective, suitable for smaller GPUs like the MSI GeForce RTX 5050 GAMING 8GB OC.

For UK users building compact systems or high-performance rigs, pairing undervolting with a quality cooler enhances results. The Corsair NAUTILUS 240 RS ARGB 240mm AIO CPU Cooler (White) is excellent for small cases, keeping temperatures low even with aggressive undervolts on GPUs like the XFX QuickSilver RX 9070 16GB OC.

Undervolting is especially relevant in the UK because of factors like smaller living spaces, higher electricity costs, and limited airflow in flats or offices. By reducing GPU voltage, you can achieve:

• 5–15°C lower temperatures
• 10–20% reduced power consumption
• Lower fan noise (important in shared UK homes)
• Improved frame rate stability in high-demand games

Furthermore, using platforms like PC Part Picker UK helps gamers compare GPUs, check compatibility with cooling solutions, and see recommended undervolt-friendly builds, making it easier than ever for UK users to optimise their systems safely.

Overall, undervolting is a cost-free, reversible, and beginner-friendly optimisation that every UK PC builder should consider. By combining high-quality thermal compounds, proper cooling, and voltage curve adjustments, your GPU can operate cooler, quieter, and more efficiently perfect for the UK gaming and creator environment.

Is Undervolting Safe? UK Warranty Notes & Myths

One of the most common concerns for UK gamers considering undervolting is whether it’s safe and if it affects their warranty. The short answer: GPU undervolting is generally safe, fully reversible, and does not void warranties under UK law.

Under the Consumer Rights Act 2015, any product purchased in the UK must meet standards of quality and durability. Adjusting voltage on your GPU does not constitute “tampering” in the way that overclocking or physical modifications might. Modern GPUs including cards like the Palit GeForce RTX 5070 GamingPro 12GB or XFX QuickSilver RX 9070XT 16GB are designed with voltage and frequency curves that can safely handle adjustments using official software.

Undervolting is actually safer than overclocking because it reduces electrical stress and heat on the GPU. For example, undervolting a PNY GeForce RTX 5080 16GB OC by 50–100mV can lower temperatures by 5–15°C while consuming 10–20% less power. Cooler operation helps prolong component lifespan and can reduce fan noise—especially useful in typical UK flats or offices with limited airflow.

It’s important to note some myths:

1. Myth: Undervolting voids GPU warranty
   ✅ Reality: Adjusting voltage via software is reversible and considered normal operation. NVIDIA, AMD, and Intel officially support curve adjustments. Cards like the XFX Radeon RX 9070 16GB OC or the MSI GeForce RTX 5060 GAMING OC 8GB are safe to undervolt when using recommended software.
2. Myth: Undervolting reduces performance
   ✅ Reality: Unlike underclocking, undervolting maintains the GPU’s frequency. With proper curve tuning, frame rates in UK-relevant games like F1 24 or Baldur’s Gate 3 remain unchanged.
3. Myth: Only high-end GPUs benefit
   ✅ Reality: Even mid-range cards such as the Palit GeForce RTX 5060 Dual 8GB OC or budget-friendly GPUs like the MSI GeForce RTX 5050 GAMING 8GB OC can see improvements in temperatures, energy consumption, and fan noise.

When undervolting, pairing your GPU with quality thermal compounds like Arctic MX-4 20g Premium Thermal Paste or Gamdias Xc7 Extreme Thermal Paste 4g ensures heat is efficiently conducted to the cooler. For small or compact UK builds, a high-quality cooler such as the Corsair NAUTILUS 240 RS ARGB 240mm AIO CPU Cooler (White) can further reduce temperatures and help maintain stable undervolts.

Practical Tips for UK Users:

• Always test stability with UK-friendly benchmarks like Time Spy or Fortnite DirectX12 stress loops.
• Monitor temperatures with HWiNFO64 or GPU-Z to ensure safe operation.
• Keep airflow in mind: UK flats or small offices often have limited ventilation. Adding case fans (PC Cooling Fans) can improve undervolting results.
• Start conservative with voltage reductions and gradually decrease until you find the lowest stable point.

By following these steps, UK gamers using PC Part Picker UK can safely undervolt their GPUs, lower temperatures, reduce noise, and extend GPU lifespan—all without voiding warranty or risking stability. Cards like the XFX Quicksilver RX 9070XT 16GB or Palit RTX 5070 Infinity 3 12GB showcase how both high-end and mid-range GPUs benefit from safe undervolting.

Tools You’ll Need for GPU Undervolting (UK Edition)

Undervolting your GPU in the UK is easier and safer when you have the right tools at hand. Using quality software and hardware ensures stability, accurate monitoring, and a smooth experience while optimising your graphics card for cooler temperatures, lower power consumption, and quieter operation. PC builders in the UK often rely on PC Part Picker UK to compare compatible tools, GPUs, and cooling solutions before making a purchase.

1. Software Tools for NVIDIA GPUs (RTX 40/50-Series)

For NVIDIA users, the industry standard is MSI Afterburner, which allows precise control over voltage, frequency curves, and fan behaviour. Coupled with NVIDIA OC Scanner, it can automatically detect safe undervolt points for cards like the Palit GeForce RTX 5070 Infinity 3 12GB or MSI GeForce RTX 5060 GAMING OC 8GB.

• MSI Afterburner: Adjust voltage/frequency curves, control fan speed, and monitor GPU temperatures in real time.
• NVIDIA OC Scanner: Scans for stable undervolt points automatically to reduce trial-and-error.

2. Software Tools for AMD GPUs (RX 7000/9000-Series)

AMD users benefit from the Radeon Adrenalin Software, which now includes the Curve Optimiser for undervolting. Cards like the XFX Quicksilver RX 9070XT 16GB or XFX QuickSilver RX 9070 16GB OC respond extremely well to these settings.

• Radeon Curve Optimiser: Lets you adjust per-core voltages for optimal power efficiency without sacrificing performance.
• Radeon Adrenalin Software: Comprehensive monitoring for clock speeds, temperature, and fan curves.

3. Software Tools for Intel Arc GPUs (B580/B570/B570)

Intel Arc owners can use Intel Arc Control to manage voltage curves safely. GPUs like the Gigabyte RTX 5060 Low Profile OC 8GB and Palit GeForce RTX 5060 Dual 8GB OC can achieve significant temperature drops with proper undervolting.

4. Monitoring & Diagnostic Tools

Even UK beginners benefit from additional monitoring tools:

• HWiNFO64: Real-time voltages, temperatures, and clock speeds across GPU and CPU.
• GPU-Z: Detailed GPU specs and monitoring.
• PC Part Picker UK: Helps ensure your GPU and cooling solutions are compatible before undervolting.

5. Thermal Compounds and Cooling Accessories

Optimising thermal transfer is essential for effective undervolting. High-quality thermal paste improves efficiency between your GPU die and heatsink. Recommended UK options:

• Arctic MX-4 20g Premium Thermal Paste – flagship thermal compound, ideal for high-end RTX or RX GPUs.
• Gamdias Xc7 Extreme Thermal Paste 4g – great for mid-range builds.
• Gamdias Xc3 Performance Thermal Compound 2g – budget-friendly, suitable for entry GPUs like the MSI GeForce RTX 5050 GAMING 8GB OC.

For advanced builds or compact UK cases, consider a high-quality AIO cooler to further support GPU undervolting:

• Corsair NAUTILUS 240 RS ARGB 240mm AIO CPU Cooler (White) – excellent airflow and thermal transfer for small form-factor or high-power systems.

6. Optional UK Accessories for Optimal Cooling

• Case fans: Improve airflow, especially in smaller UK apartments. See PC Cooling Fans for options.
• GPU accessories: For additional airflow and cooling shrouds, check GPU Accessories.

For UK gamers, the combination of software tools, monitoring utilities, and premium thermal solutions ensures undervolting is safe, effective, and beginner-friendly. Using PC Part Picker UK, you can compare GPUs, cooling solutions, and thermal compounds, making the undervolting process simple and fully compatible with your system.

How to Undervolt Step-by-Step (Safe Method for Beginners, UK Guide)

Undervolting your GPU is one of the most effective ways for UK gamers and PC builders to reduce temperatures, lower fan noise, and save electricity. With rising energy prices in the UK and increasingly powerful GPUs like the Palit GeForce RTX 5070 Infinity 3 12GB or XFX Quicksilver RX 9070XT 16GB, knowing the safe way to undervolt can extend your card’s lifespan while keeping gaming performance high. PC Part Picker UK makes it easy to match your GPU with compatible cooling and monitoring tools for a seamless undervolting process.

Step 1 — Prepare Your System

Before making any adjustments, ensure your system is ready:

• Update your GPU drivers via NVIDIA, AMD, or Intel Arc software.
• Close all background applications to ensure stable monitoring.
• Record baseline temperatures using monitoring software like HWiNFO64 or GPU-Z.
• Set a comfortable ambient room temperature (UK recommended: 18–24°C).

Optional: Improve thermal performance with premium compounds like Arctic MX-4 20g Premium Thermal Paste or Gamdias Xc7 Extreme Thermal Paste 4g. For high-end cooling, consider the Corsair NAUTILUS 240 RS ARGB 240mm AIO CPU Cooler (White) to maintain optimal GPU airflow.

Step 2 — Choose Your Target Voltage

Different GPUs respond to undervolting differently. Typical UK-safe ranges:

• NVIDIA RTX 5080 / 5090: 0.90–1.00V (example: PNY GeForce RTX 5080 16GB OC)
• AMD RX 9070 XT / 9060 XT: 850–950mV (XFX Radeon RX 9060 XT SWIFT 8GB OC)
• Intel Arc B580 / B570: 850–950mV (Gigabyte RTX 5060 Low Profile OC 8GB)

Start conservatively; undervolting too aggressively can cause instability, crashes, or reduced performance.

Step 3 — Adjust the Voltage-Frequency Curve

• NVIDIA users: Use MSI Afterburner to edit the curve; lock your GPU clock to a voltage that maintains stable performance.
• AMD users: Radeon Adrenalin Curve Optimiser allows per-core voltage reduction; fine-tune for efficiency.
• Intel Arc users: Intel Arc Control lets you reduce voltages safely while maintaining target clock speeds.

Monitor temps and fan speeds closely. Small adjustments of 10–20 mV per iteration are recommended.

Step 4 — Apply & Save Your Profile

After determining a stable undervolt:

• Save the profile in your GPU utility software (MSI Afterburner / Adrenalin / Arc Control).
• Enable auto-apply on startup if desired, or manually activate before gaming sessions.

Step 5 — Stability Testing

Testing is crucial to ensure safe undervolting:

• Run benchmarks like 3DMark Time Spy or loop demanding games:
  • Cyberpunk 2077 RT
  • Baldur’s Gate 3
  • Forza Horizon 5
• Observe for:
  • Flickering or crashes → increase voltage slightly
  • Unstable clocks → adjust downward carefully
  • Fan behaviour → ensure airflow is sufficient; optional: PC Cooling Fans

UK gamers often see a 10°C drop in GPU temperature and 15–20% energy savings with properly applied undervolts.

Pro Tips from PC Part Picker UK Experts

1. Pair with quality thermal paste like be quiet! DC2 Pro 80 W/m·K Thermal Grease for maximum heat transfer.
2. Loop testing in UK ambient temperatures ensures reliability.
3. Use airflow improvements—case fans and GPU accessories enhance undervolting benefits.

Undervolting your GPU is a safe, reversible, and practical optimisation for UK PC builders. By following these steps and combining the right tools, thermal compounds, and cooling solutions (all recommended via PC Part Picker UK), you can enjoy quieter, cooler, and more efficient gaming without sacrificing performance.

Expected Results: Realistic Gains (UK Benchmark Examples)

Once you’ve completed the undervolting process, understanding what gains to realistically expect is crucial for UK gamers and PC builders. While undervolting does not increase raw performance like overclocking, it provides cooler temperatures, reduced fan noise, and improved system efficiency, which can significantly enhance long gaming sessions or content creation workflows. With high-power GPUs such as the Palit GeForce RTX 5070 Infinity 3 12GB or XFX Quicksilver RX 9070XT 16GB, undervolting can reduce thermal throttling and improve long-term stability.

1. Temperature Reductions

The primary benefit of undervolting is lower GPU temperatures, which protects components and increases longevity.

• High-end GPUs (RTX 5080 / RTX 5090 / RX 9070 XT): Expect 8–12°C lower under load. For example, the PNY GeForce RTX 5080 16GB OC running Cyberpunk 2077 RT at 4K may drop from ~85°C to ~73°C after safe undervolting.
• Mid-range GPUs (RTX 5060 / RX 9060 XT): Typical savings: 6–10°C, particularly in UK rooms without aggressive air conditioning. For instance, XFX Radeon RX 9060 XT SWIFT 8GB OC can run cooler while maintaining peak clocks.
• Entry-level / budget GPUs (RTX 5050 / Arc B570): 4–6°C decrease, which may reduce fan ramp-ups during gaming or streaming sessions. Example: MSI GeForce RTX 5050 GAMING 8GB OC.

Lower temperatures also reduce the likelihood of thermal throttling, ensuring sustained performance for longer periods in small UK flats or offices where airflow is limited.

2. Noise Reduction

Undervolting often allows fans to spin slower without sacrificing GPU stability:

• High-end GPUs: up to 10–15 dB quieter, noticeable in quiet UK gaming setups.
• Mid-range GPUs: 5–10 dB quieter, especially with aftermarket cooling enhancements like Arctic MX-4 20g Thermal Paste.
• Combined with case airflow improvements (PC Cooling Fans), this creates a much more enjoyable UK desktop environment.

3. Power Savings

Undervolted GPUs draw less wattage, which is a tangible benefit given UK energy costs:

• High-end GPUs: 15–20% energy reduction under full load.
• Mid-range: ~10–15% savings.
• Budget GPUs: 5–10%, still noticeable over weeks of gaming or content creation.

For example, undervolting Palit GeForce RTX 5060 Dual 8GB OC can reduce power consumption by ~20–25W under load without impacting frame rates in popular titles.

4. Frame Rate Stability & Performance

• Undervolted GPUs often maintain more consistent frame rates by preventing minor throttling.
• UK-relevant games where gains are visible:
  • Baldur’s Gate 3 (high VRAM usage, long campaigns)
  • Call of Duty: Warzone (1440p/4K competitive)
  • F1 24 (sustained GPU load)
  • Forza Horizon 5 (open-world texture streaming)

Example: The XFX Quicksilver RX 9070 16GB OC can maintain smoother 1440p/4K frame pacing after undervolting, even under ultra settings.

5. Additional UK-Specific Tips

• Test undervolting in your typical UK ambient temperature (18–24°C) to reflect realistic gaming conditions.
• Use thermal paste improvements like Gamdias Xc7 Extreme Thermal Paste 4g when repasting GPUs to maximise undervolting benefits.
• Combine with GPU cooling accessories for better airflow and heat dissipation.

With proper undervolting, UK gamers using PC Part Picker to source components can expect cooler GPUs, quieter operation, lower power draw, and more consistent gaming performance. Whether you’re running a high-end RTX 5090 or mid-range RX 9060 XT, undervolting is a low-risk optimisation that adds value to any build.

Undervolting Tips for Each Brand (Latest 2026 GPUs)

Different GPU brands and models have unique voltage-frequency characteristics, and applying safe undervolts varies between them. For UK PC enthusiasts and gamers, understanding these nuances ensures optimal cooling, lower noise, and reliable performance while using PC Part Picker to source compatible components. Below, we detail undervolting tips for NVIDIA, AMD, and Intel GPUs with examples using products available in the UK.

1. NVIDIA RTX 50-Series (Ada-Next Architecture)

NVIDIA’s RTX 50-series GPUs, including models like Palit GeForce RTX 5070 Infinity 3 12GB and PNY GeForce RTX 5080 16GB OC, respond very well to undervolting due to conservative factory voltage settings.

UK Tips for RTX 50-Series:

• Use MSI Afterburner to adjust voltage-frequency curves.
• Target safe voltages: 0.95–1.00V for mid-to-high models like the RTX 5070; 0.90–0.98V for RTX 5080/5090.
• Lock clocks at stable points for gaming; avoid max factory boost for long sessions.
• Monitor temps using HWiNFO64 or GPU-Z to ensure stability in UK ambient temperatures.
• Recommended for UK setups with standard airflow: combine undervolting with thermal paste like Arctic MX-4 20g or an optional AIO like Corsair NAUTILUS 240 RS ARGB.

Practical example:

• ASUS GeForce RTX 5070 DUAL 12GB OC can achieve stable gaming at 0.975V / 2650 MHz, reducing load temps by ~10°C.

2. AMD Radeon RX 9000-Series

AMD’s RX 9000-Series, like XFX Quicksilver RX 9070XT 16GB and GIGABYTE RX 9070 GAMING 16GB OC, is inherently efficient but still benefits from careful undervolting.

UK Tips for RX 9000-Series:

• Use AMD Radeon Adrenalin Software → Radeon Curve Optimiser.
• Safe undervolt range: 850–950 mV for core voltage; VRAM undervolting possible for memory-intensive UK games.
• Test stability in UK-relevant games: Baldur’s Gate 3, F1 24, Forza Horizon 5.
• Combine with airflow enhancements using PC Cooling Fans or GPU heatsinks to prevent hotspots.

Example:

• XFX QuickSilver RX 9070 16GB OC achieves stable 2600 MHz at 900 mV, with quieter fans and ~12°C lower temps under load.

3. Intel Arc Battlemage (B580 / B570)

Intel’s Arc GPUs, such as Gigabyte RTX 5060 Low Profile OC 8GB or Palit GeForce RTX 5060 Dual 8GB OC in Intel Arc equivalents, tend to ship with high stock voltages, leaving room for safe undervolts.

UK Tips for Intel Arc GPUs:

• Use Intel Arc Control to adjust voltage curves.
• Target range: 850–950 mV depending on load and cooling.
• Run stability tests on modern UK gaming benchmarks (Cyberpunk 2077 RT, Fortnite DX12) to ensure reliability.
• Laptops: undervolt only slightly due to tighter thermal limits; monitor temps closely with tools like HWiNFO64.

Example:

• MSI GeForce RTX 5060 GAMING OC 8GB can operate at 900 mV without affecting 1080p/1440p performance, with fan RPM dropping by 10–15%.
• Key Undervolting Best Practices (UK Context)

1. Always monitor GPU temperature and stability after any voltage adjustments.
2. Use thermal paste upgrades (Gamdias Xc7, be quiet! DC2 Pro) for optimal heat transfer.
3. Adjust fan curves to maintain quiet operation in small UK rooms.
4. Combine undervolting with GPU cooling accessories or airflow optimizations to maximize benefits.

For UK gamers and content creators, undervolting NVIDIA RTX 50-series, AMD RX 9000-series, and Intel Arc GPUs can produce cooler temperatures, quieter operation, lower energy consumption, and more stable frame rates. Using PC Part Picker to source these GPUs and compatible thermal/cooling accessories ensures that your undervolt workflow is both safe and effective.

When Should You Not Undervolt? (UK Context)

While GPU undervolting is safe and beneficial in most cases, there are scenarios where UK PC enthusiasts and gamers should avoid undervolting. Understanding these exceptions ensures system stability, prevents performance loss, and avoids potential issues with your gaming or content creation workflow. Using PC Part Picker to source compatible parts can help you make informed decisions while following this guidance.

1. Chasing Maximum Benchmark Scores

If your primary goal is benchmark dominance, undervolting may not always be ideal.

• Competitive benchmarking often requires GPUs to hit maximum factory boost clocks, which may be slightly above the stable undervolt curve.
• GPUs like the Palit GeForce RTX 5070 GamingPro 12GB or XFX Quicksilver RX 9070XT 16GB can see minor performance drops if undervolted aggressively.
• For UK users who submit scores to 3DMark or GPU-intensive benchmarks, maintaining stock or slightly overclocked voltages may be preferable.

2. GPU Already Running Cool

Modern GPUs often have excellent stock thermals, especially in well-ventilated UK cases:

• Flagship air-cooled GPUs like Palit GeForce RTX 5060 Dual 8GB OC may already operate below 65°C under load.
• Undervolting in this scenario may offer minimal additional temperature reduction, making the effort less worthwhile.
• Instead, focus on good airflow, thermal paste application (e.g., Arctic MX-4 20g), and proper fan curve optimization.

3. Low-Quality or Undersized PSU

UK prebuilts or budget systems often use entry-level PSUs that cannot handle undervolted GPUs reliably:

• PSU instability may lead to system crashes or sudden shutdowns, regardless of GPU settings.
• Recommended PSUs for undervolting RTX 50/AMD 9000-Series:
  • Corsair RM850x for mid-range builds
  • be quiet! Dark Power 13 1000W for high-end systems
• Avoid undervolting on systems with generic or unknown PSU brands; power delivery fluctuations may destabilize undervolted GPUs.

4. Aggressive Gaming Laptops

While undervolting is possible on laptops, UK users should be cautious:

• Small form factor designs, like those with integrated Intel Arc B580/B570 GPUs, already have tight thermal envelopes.
• Aggressive undervolting may cause instability, game crashes, or screen flickering.
• Use minimal adjustments and monitor temps closely with tools like HWiNFO64.

5. Older GPUs or Weak Silicon

Not all GPUs undervolt equally:

• Older or low-end GPUs may have limited headroom, especially budget models like MSI GeForce RTX 5050 GAMING 8GB OC.
• Aggressive undervolts can trigger artifacts, flickers, or crashes.
• Stick with factory settings unless stability testing confirms safe operation.

Undervolting is a powerful tool for UK PC gamers and content creators, but it is not always necessary or beneficial. Avoid undervolting if:

• You are chasing maximum benchmark performance
• Your GPU is already cool under load
• Your PSU is undersized or low-quality
• You are using a compact gaming laptop
• The GPU is older or silicon-limited

Best Undervolting Profiles (Examples You Can Copy)

Once you’ve understood the principles of GPU undervolting, having safe starting points can make the process much easier. Below are recommended undervolt profiles for UK gamers and PC builders using current-generation GPUs in 2026. All examples assume you’re using reliable power supplies and good cooling (e.g., Arctic MX-4 Thermal Paste or Corsair NAUTILUS 240 RS ARGB Cooler).

Using PC Part Picker to verify GPU and system compatibility can help prevent instability when applying these settings.

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1. NVIDIA RTX 50-Series

These GPUs, like the RTX 5070 and RTX 5080, benefit from stable fixed voltage points. UK gamers often see significant temperature drops without sacrificing performance.

GPU	Safe Voltage	Target Clock	Product URL
RTX 5090	0.975V	2650 MHz	PNY GeForce RTX 5080 16GB OC
RTX 5080	0.965V	2600 MHz	Palit GeForce RTX 5070 Infinity 3 12GB
RTX 5070	0.950V	2550 MHz	ASUS GeForce RTX 5070 DUAL 12GB OC
RTX 5060	0.925V	2450 MHz	MSI GeForce RTX 5060 GAMING OC 8GB
RTX 5050	0.900V	2300 MHz	MSI GeForce RTX 5050 GAMING 8GB OC

Notes for UK Users:

• Use MSI Afterburner to lock voltage points.
• Monitor temps in Baldur’s Gate 3 or F1 24 to validate stability.
• Combining undervolting with high-quality thermal paste (Gamdias Xc3 2g) can further reduce peak temperatures by ~5°C.

2. AMD Radeon RX 9000-Series

AMD cards are often more efficient than NVIDIA, providing larger undervolt headroom. These settings are ideal for UK gaming rigs in flats or smaller rooms where noise and heat matter.

GPU	Safe Voltage	Target Clock	Product URL
RX 9070 XT	900mV	2600 MHz	XFX Quicksilver RX 9070XT 16GB
RX 9070	880mV	2550 MHz	GIGABYTE RX 9070 GAMING 16GB OC
RX 9060 XT	875mV	2450 MHz	XFX Radeon RX 9060 XT SWIFT 8GB OC

Pro Tips:

• Use AMD Radeon Adrenalin Curve Optimiser for precise voltage control.
• VRAM undervolting can also reduce memory temperature slightly, but test for artifacts.
• Combining undervolt profiles with an AIO cooler like Corsair NAUTILUS 240 RS ARGB ensures optimal thermal performance.

3. Intel Arc Battlemage Series (B580/B570)

Intel GPUs are newer and often ship with high voltages, so undervolting can significantly reduce temps while maintaining gaming performance.

GPU	Safe Voltage	Target Clock	Product URL
Arc B580	900mV	2500 MHz	Palit GeForce RTX 5060 Dual 8GB OC
Arc B570	900mV	2450 MHz	Gigabyte RTX 5060 Low Profile OC 8GB

UK Advice:

• Test with HWiNFO64 for accurate voltage and temperature logging.
• These cards respond well to even modest undervolts, making them ideal for quieter, more energy-efficient gaming PCs.

Summary and UK Gaming Notes

Using PC Part Picker ensures component compatibility and helps build safe undervolted rigs without guessing wattage or cooling limits.Using PC Part Picker to select reliable GPUs, PSUs, and cooling components ensures that undervolting is applied safely when appropriate. Combine undervolting with high-quality thermal paste (Gamdias Xc7 Extreme) and optional airflow enhancements for optimal UK performance.

Start with mild undervolts and test stability before pushing lower voltages.

Pair undervolting with thermal paste upgrades (Arctic MX-4) and optional airflow enhancements (Box.co.uk PC Cooling Fans) for the best results.

Always track temperatures, fan noise, and frame rates in games relevant to UK gamers such as Forza Horizon 5, F1 24, and Call of Duty Warzone.

Troubleshooting: Fixing Instability

Even with carefully applied undervolt profiles, some GPUs may show instability symptoms such as crashes, flickering, or sudden driver resets. UK PC builders, especially those in apartments or flats with limited airflow, should be aware of common pitfalls and practical fixes. Using PC Part Picker to verify component compatibility can reduce trial-and-error significantly.

1. Common Symptoms of Undervolting Issues

• Screen Flicker or Artifacting: Often caused by voltage being too low for the selected clock speed.
• Game Crashes / Freezes: The GPU cannot sustain stable operation at current undervolt levels.
• Driver Resets (TDRs in Windows): The graphics driver may detect instability and reset the GPU.
• Higher than Expected Temperatures: Indicates poor airflow rather than undervolting failure; undervolting alone may not be enough.

2. Step-by-Step Troubleshooting Tips

a) Screen Flicker / Artifacts

• Reduce the GPU clock speed in small increments (25–50 MHz).
• Apply thermal solutions if needed: a high-quality thermal paste such as Arctic MX-4 20g Premium can improve heat dissipation.
• Ensure case airflow is optimized, e.g., using additional box.co.uk PC Cooling Fans.

b) Game Crashes

• Increase GPU voltage slightly (+10–25 mV) and retest stability.
• Use UK-relevant stress tests like Baldur’s Gate 3 or F1 24 for 15–30 minutes.
• Consider monitoring with HWiNFO64 to track voltage drops or thermal spikes.

c) Driver Resets / TDRs

• Check GPU driver version; update via NVIDIA GeForce Experience, AMD Adrenalin, or Intel Arc Control.
• Reset undervolt curve and reapply gradually.
• Use MSI Afterburner or Radeon Curve Optimiser to save multiple profiles for experimentation.

d) High Temperatures Despite Undervolting

• Verify thermal paste quality; consider Gamdias Xc7 Extreme Thermal Paste 4g for better conduction.
• Ensure GPU AIO or air cooler is properly mounted, e.g., Corsair NAUTILUS 240 RS ARGB 240mm AIO.
• Check airflow paths; add case fans or remove obstructions in mini-ITX builds.

3. GPU-Specific Tips (UK Context)

GPU	Common Fix	Product URL
RTX 5070	Lower clock by 25 MHz / apply Arctic MX-4	Palit GeForce RTX 5070 Infinity 3 12GB
RX 9070 XT	Adjust voltage + VRAM test	XFX Quicksilver RX 9070XT 16GB
Intel Arc B580	Reset undervolt curve; monitor with HWiNFO64	Palit GeForce RTX 5060 Dual 8GB OC

Pro Tips for UK Users:

• Test undervolt stability in real-world UK ambient temperatures (18–24°C), especially in summer months.
• Keep PSU quality in mind; undervolted GPUs are sensitive to low-quality power in smaller UK apartments.
• Track fan noise changes — undervolting should reduce fan RPM and dB levels.

4. Advanced Troubleshooting Techniques

• Use Multiple Profiles: Save safe, moderate, and aggressive undervolt curves for rapid switching depending on load.
• VRAM Undervolting (AMD): Only tweak small increments; instability may manifest as graphical glitches.
• Software Monitoring: Intel Arc, Radeon Adrenalin, and MSI Afterburner allow live voltage and clock monitoring.

5. Conclusion

Troubleshooting is a critical part of safe undervolting. By following these UK-targeted tips and using high-quality thermal pastes, coolers, and fan upgrades, your undervolted GPU can achieve cooler temperatures, reduced noise, and improved energy efficiency. Always pair undervolting with tools like PC Part Picker to ensure your rig’s components are compatible and fully optimised.

Final Thoughts: Undervolting Is a No-Brainer for UK Gamers

Undervolting your GPU is no longer a niche optimisation technique; it has become a standard practice for UK PC builders, gamers, and content creators in 2026. Rising energy costs, hotter summer months, and the increasing power demands of modern GPUs make safe undervolting an essential step in building a high-performance, efficient system. Using PC Part Picker to select compatible GPUs, cooling solutions, and accessories ensures that UK users can achieve maximum benefits with minimal risk.

1. Energy Savings & Cost Efficiency

In the UK, electricity prices are a growing concern. A GPU running at stock voltages can consume significantly more power than necessary during gaming or creative workloads. Undervolting can reduce GPU power draw by 15–20%, translating to noticeable savings on your energy bills.

For example, pairing an undervolted Palit GeForce RTX 5070 Infinity 3 12GB (link) with proper airflow and cooling ensures the card consumes less power without sacrificing performance in UK-favourite games such as F1 24 or Call of Duty Warzone.

2. Cooler Temperatures & Noise Reduction

Safe undervolting significantly lowers GPU temperatures, often by 10°C or more, which directly reduces fan speeds and system noise. UK users with smaller flats or shared offices will especially benefit from quieter rigs.

Combining undervolting with quality cooling products, such as:

• Arctic MX-4 20g Premium Thermal Paste
• Corsair NAUTILUS 240 RS ARGB 240mm AIO

can help maintain safe thermal levels even in the warmest UK summer conditions.

3. Longer GPU Lifespan & Stability

Undervolting reduces thermal stress on components, helping prevent early wear on your GPU and associated VRAM. Cards like the XFX Quicksilver RX 9070XT 16GB (link) run cooler and quieter, while maintaining peak performance.

Using PC Part Picker for proper GPU and PSU matching ensures that undervolting is both safe and effective, particularly in UK environments where power quality and ventilation can vary.

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4. Safe, Reversible, and Easy

Unlike overclocking, undervolting is completely reversible and generally safe. UK gamers can experiment with different voltages without worrying about voiding warranties, thanks to protections under UK consumer law (Consumer Rights Act 2015).

Monitoring tools like HWiNFO64, MSI Afterburner, and Radeon Adrenalin Software allow UK users to tweak settings confidently. Starting with mild undervolts, such as:

• RTX 5090 @ 0.975V / 2650 MHz
• RX 9070 XT @ 900mV / 2600 MHz

provides immediate benefits without risking instability.

5. Final Takeaway for UK Builders

• Saves Electricity: Reduces energy bills in the UK.
• Lowers Noise: Ideal for apartments, offices, and shared spaces.
• Extends Lifespan: Reduces heat stress on GPUs and VRAM.
• Easy to Implement: Fully reversible and compatible with most modern GPUs.

By using PC Part Picker to plan compatible builds and pairing undervolting with quality cooling accessories (Arctic MX-4, Corsair NAUTILUS 240 RS ARGB), UK gamers can achieve the perfect balance of performance, efficiency, and quiet operation. Undervolting is not just a tweak; it’s a must-do optimisation for any serious UK PC enthusiast in 2026.